What type of filter to buy for camera lens?

I have the Nikon D60 with the standard AF-S DX NIKKOR 18-55mm f/3.5-5.6G VR Lens that comes with the camera. I would like to take better outside photos. The sky is always washed out. I want a nice blue sky and white clouds that aren't too hot. Do I just get a polarizing lens filter? Also, I would just get size 55mm, since I have the 18-55mm lens, right? Any brand recommendations? Would like to spend less then $40.
I'm an amateur… Don't make fun of me.

BIRDS PHOTOGRAPHY With the NIKON D5000 camera?

I want to buy a NIKON D5000 camera for birds photography.

Which lens LENGTH will be good for that?

Can I use Nikon - SB-900 Speedlight External Flash Unit on my Nikon D5000?

I wanted to buy an external flash and i don't know if the SB900 would work on my D5000.

Buying a new DSLR. Your suggestions

I have had a NIKON D60 before from JESSOPS… Getting to know the camera was fun but now i dislike it coz of some stupid features it should have. Anyways, M thinking of buying a NIKON D90 when i get the money… Is it worth buying it from stores like JESSOPS when one can find it cheaper on eBay, Amazon etc? Guys, hell me out? Or give me some sites where i can buy it safer and cheaper.

What comes with the nikon d5000?

What comes with the nikon d5000?

How does nikon do their serial numbering?

Like I buy a D7000 when it is released. Would it be like D7000_544
or maybe just a number like 0000544
Or is it just random and not production number?

How to get the perfect color balance on a night shot?

Mhm I'm kind of embarrassed to ask that, cause I've been doing photo for a while, but I never really got interested in night photography until now. And now that I try, I really get it bad when it comes to color balance at night.
Maybe someone could help me: P

If you ever wonder, I have a D90 (nikon)… But that should not bother… Really…

Does anyone want to trade canon eos 7d for a nikon d90?

I know d90 is better for taking photagraphy but i just want to use the canon eos 7d for movies since it shoot full hd>

I need to sell my camera! How much should I sell it for, and where

So, I have made the decision to buy a new camera, the nikon D90.but, i have to sell the one I have right now first. It's the olympus Evolt (e-520). I bought it for a little over $600 dollars. I've only had it for 8 months too. I was thinking of selling it for around $515.
i need some imput on how much i should sell it for, and where!

Which lenses are the best to get when buying a Nikon D90?

I'm looking for something that's great quality, yet not too expensive… Any suggestions?